On a Ryzen build - perhaps, depending the application in question, but sometimes especially on a Ryzen build some CAS14 modules on some boards may make be the difference between hitting the max. speed of that Ram vs running it lower. (CAS 16)

Now on a Intel build, i wouldn't bother much about the CAS latency.

Get some 3000MHz or 3200 MHz ones if the price is right and you are good to go.

DDR4-3200 RAM modules with CL14 usually use Samsung B-DIE RAM chips, which in turn are the most compatible RAM for Ryzen. Thanks to AMD's Agesa updates (Microcode applied via BIOS Update) and Ryzen 2 the issue is no longer as present than it used be.